Just go to amazon and put in "RV socket" and it comes right up. 3/4 inch socket. I just got one to work with my Ridgid cordless impact/drill/driver. How sweet it is!!!
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2004 Jay Flight 21FB
2001 Yukon SLT
Just an FYI, My Jayco 2014 1006 doesn't have nuts, It just has 2 spot welds one on each side of threaded crank rod. I took a grinder and ground sideways at the top middle of socket so it slips over the spot welds, Bingo! 20 volt cordless, and no bad back!